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TLC0838 Datasheet Preview

TLC0838 Datasheet

8-BIT ANALOG-TO-DIGITAL CONVERTER

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TLC0834C, TLC0834I, TLC0838C, TLC0838I
8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL
D 8-Bit Resolution
D Easy Microprocessor Interface or
Stand-Alone Operation
D Operates Ratiometrically or With 5-V
Reference
D 4- or 8-Channel Multiplexer Options With
Address Logic
D Input Range 0 to 5 V With Single 5-V Supply
D Remote Operation With Serial Data Link
SLAS094E – MARCH 1995 – REVISED OCTOBER 2000
D Inputs and Outputs Are Compatible With
TTL and MOS
D Conversion Time of 32 µs at
fclock = 250 kHz
D Functionally Equivalent to the ADC0834
and ADC0838 Without the Internal Zener
Regulator Network
D Total Unadjusted Error . . . ±1 LSB
description
These devices are 8-bit successive- approximation analog-to-digital converters, each with an
input-configurable multichannel multiplexer and serial input/output. The serial input/ output is configured to
interface with standard shift registers or microprocessors. Detailed information on interfacing with most popular
microprocessors is readily available from the factory.
The TLC0834 (4-channel) and TLC0838 (8-channel) multiplexer is software-configured for single-ended or
differential inputs as well as pseudodifferential input assignments. The differential analog voltage input allows
for common-mode rejection or offset of the analog zero input voltage value. In addition, the voltage reference
input can be adjusted to allow encoding of any smaller analog voltage span to the full 8 bits of resolution.
The TLC0834C and TLC0838C are characterized for operation from 0°C to 70°C. The TLC0834I and TLC0838I
are characterized for operation from – 40°C to 85°C. The TLC0834Q is characterized for operation from – 40°C
to 125°C.
TLC0834 . . . D OR N PACKAGE
(TOP VIEW)
TLC0834 . . . PW PACKAGE
(TOP VIEW)
TLC0838 . . . PW, DW, OR N PACKAGE
(TOP VIEW)
NC 1
CS 2
CH0 3
CH1 4
CH2 5
CH3 6
DGTL GND 7
14 VCC
13 DI
12 CLK
11 SARS
10 DO
9 REF
8 ANLG GND
NC 1
16 VCC
CH0 1
CS 2 15 NC
CH1 2
CH0 3 14 CS
CH2 3
CH1 4 13 SARS
CH3 4
CH2 5 12 DO
CH4 5
CH3 6
11 REF
CH5 6
DGTL GND 7 10 ANLG GND
CH6 7
NC 8
9 NC
CH7 8
NC – No internal connection
COM 9
DGTL GND 10
20 VCC
19 NC
18 CS
17 DI
16 CLK
15 SARS
14 DO
13 SE
12 REF
11 ANLG GND
TA
0°C to 70°C
– 40°C to 85°C
– 40°C to 125°C
SMALL
OUTLINE
(D)
TLC0834CD
TLC0834ID
AVAILABLE OPTIONS
PACKAGE
SMALL
OUTLINE
(DW)
PLASTIC DIP
(N)
TLC0838CDW TLC0834CN TLC0838CN
TLC0838IDW TLC0834IN TLC0838IN
TLC0834QN
TSSOP
(PW)
TLC0834CPW TLC0838CPW
TLC0834IPW TLC0838IPW
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 2000, Texas Instruments Incorporated
1




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TLC0838 Datasheet Preview

TLC0838 Datasheet

8-BIT ANALOG-TO-DIGITAL CONVERTER

No Preview Available !

functional block diagram
CLK 16
18
CS
DI17
(see Note A)
D
R
5-Bit Shift Register
CLK
SELECT0 SELECT1 ODD\ EVEN SGL\ DIF START
TLC0838
Only
SE
TLC0834
TLC0838
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
1
2
3
4
5
6
7
8
9
To Internal
Circuits
Analog
MUX
EN
Start
Flip-Flop
CLK
S
R
CS
18
15
SARS
Time
Delay
CLK
S
R
18
CS
12
REF
EN
Ladder
and
Decoder
Comparator
CS
18
R
Bits 0–7
SAR
Logic
and
Latch
Bits 0–7
Bit 1
CS
18
R
CLK
9-Bit
Shift
Register
EOC
One
Shot
MSB
First
LSB
First
CS
18
R
CLK
D
CS
18
14
DO
NOTES A: For the TLC0834, DI is input directly to the D input of SELECT1; SELECT0 is forced to a high.
B: Terminal numbers shown are for the DW or N package.


Part Number TLC0838
Description 8-BIT ANALOG-TO-DIGITAL CONVERTER
Maker etcTI
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TLC0838 Datasheet PDF






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